Question

【题目】必须教育孩子当心车辆。 (be careful of)

Answer 1

【答案】Children must be taught to be careful of the traffic.
【解析】must必须， children孩子们，teach教育，be careful of小心，the traffic车辆，这是一个客观事实，句子用一般现在时，语态用被动语态，被动语态的结构be+done，情态动词后跟动词原形，to be careful of the traffic动词不定式短语作主语补足语，所以答案是：Children must be taught to be careful of the traffic.